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Finding the Fourth Proportional to 57,505.66, 79,369.61 and 33,638.20

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Solution

The fourth proportional to 57,505.66, 79,369.61 and 33,638.20 is: 46,427.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,505.66 : 79,369.61 = 33,638.20 : x
  2. Step 2: Convert to fraction form
    57,505.66/79,369.61 = 33,638.20/x
  3. Step 3: Cross multiply
    57,505.66x = 79,369.61 × 33,638.20
  4. Step 4: Simplify right side
    57,505.66x = 2,669,850,448.49
  5. Step 5: Solve for x
    x = 2,669,850,448.49/57,505.66
  6. Step 6: Final answer
    x = 46,427.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.